Dec 18, 2012 4:00pm PST
in newtown, connecticut. "outfront" searching for answers. that's what we've all been doing, trying to understand how this happened and why it happened. investigators in connecticut returned to the home of the gunman. the suspected gunman, 20-year-old adam lanza, searching for evidence. so far, authorities have been unable to retrieve any information from his computer, which was found smashed to pieces in the house he lived in with his mother, nancy. now, investigators have been trying to piece together an explanation for the crucial why, why did he do this, why did he shoot and kill his mother, why did he go to school -- a school that he had no link to and shoot 20 innocent children and six adults. the community is just starting to try to begin to heal. most students began going back to school, trying to go back into a routine today. they went back to school. police were standing guard outside the schools here. but the district superintendent said today that students and teachers from sandy hook elementary will not actually be going back to school until january, after winter break.